New research by an archaeologist at the University of York suggests that betrayals of trust were the missing link in understanding the rapid spread of our own species around the world. Jeff and Anthony discuss whether the dark side of human nature might be as useful as the light.

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Today’s story was sent in by Derrick Brown: http://www.psypost.org/2015/11/human-natures-dark-side-helped-us-spread-across-the-world-39528

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